X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=lib%2Feal%2Fwindows%2Feal.c;h=f7ce1b66711c8f60b9f9cd97c223add88ecbe15b;hb=0c8fc83a71f37107ad0b205b2a176fde9188390e;hp=3d8c5204128bfc00e7f59ed377c031e3e1187222;hpb=e6732d0d6e26e37e2e0c22050b350bdd7df34009;p=dpdk.git

diff --git a/lib/eal/windows/eal.c b/lib/eal/windows/eal.c
index 3d8c520412..f7ce1b6671 100644
--- a/lib/eal/windows/eal.c
+++ b/lib/eal/windows/eal.c
@@ -276,6 +276,8 @@ rte_eal_init(int argc, char **argv)
 	const struct rte_config *config = rte_eal_get_configuration();
 	struct internal_config *internal_conf =
 		eal_get_internal_configuration();
+	bool has_phys_addr;
+	enum rte_iova_mode iova_mode;
 	int ret;
 
 	eal_log_init(NULL, 0);
@@ -322,18 +324,59 @@ rte_eal_init(int argc, char **argv)
 			internal_conf->memory = MEMSIZE_IF_NO_HUGE_PAGE;
 	}
 
+	if (rte_eal_intr_init() < 0) {
+		rte_eal_init_alert("Cannot init interrupt-handling thread");
+		return -1;
+	}
+
+	if (rte_eal_timer_init() < 0) {
+		rte_eal_init_alert("Cannot init TSC timer");
+		rte_errno = EFAULT;
+		return -1;
+	}
+
+	bscan = rte_bus_scan();
+	if (bscan < 0) {
+		rte_eal_init_alert("Cannot scan the buses");
+		rte_errno = ENODEV;
+		return -1;
+	}
+
 	if (eal_mem_win32api_init() < 0) {
 		rte_eal_init_alert("Cannot access Win32 memory management");
 		rte_errno = ENOTSUP;
 		return -1;
 	}
 
+	has_phys_addr = true;
 	if (eal_mem_virt2iova_init() < 0) {
 		/* Non-fatal error if physical addresses are not required. */
-		RTE_LOG(WARNING, EAL, "Cannot access virt2phys driver, "
+		RTE_LOG(DEBUG, EAL, "Cannot access virt2phys driver, "
 			"PA will not be available\n");
+		has_phys_addr = false;
 	}
 
+	iova_mode = internal_conf->iova_mode;
+	if (iova_mode == RTE_IOVA_PA && !has_phys_addr) {
+		rte_eal_init_alert("Cannot use IOVA as 'PA' since physical addresses are not available");
+		rte_errno = EINVAL;
+		return -1;
+	}
+	if (iova_mode == RTE_IOVA_DC) {
+		RTE_LOG(DEBUG, EAL, "Specific IOVA mode is not requested, autodetecting\n");
+		if (has_phys_addr) {
+			RTE_LOG(DEBUG, EAL, "Selecting IOVA mode according to bus requests\n");
+			iova_mode = rte_bus_get_iommu_class();
+			if (iova_mode == RTE_IOVA_DC)
+				iova_mode = RTE_IOVA_PA;
+		} else {
+			iova_mode = RTE_IOVA_VA;
+		}
+	}
+	RTE_LOG(DEBUG, EAL, "Selected IOVA mode '%s'\n",
+		iova_mode == RTE_IOVA_PA ? "PA" : "VA");
+	rte_eal_get_configuration()->iova_mode = iova_mode;
+
 	if (rte_eal_memzone_init() < 0) {
 		rte_eal_init_alert("Cannot init memzone");
 		rte_errno = ENODEV;
@@ -358,27 +401,9 @@ rte_eal_init(int argc, char **argv)
 		return -1;
 	}
 
-	if (rte_eal_intr_init() < 0) {
-		rte_eal_init_alert("Cannot init interrupt-handling thread");
-		return -1;
-	}
-
-	if (rte_eal_timer_init() < 0) {
-		rte_eal_init_alert("Cannot init TSC timer");
-		rte_errno = EFAULT;
-		return -1;
-	}
-
 	__rte_thread_init(config->main_lcore,
 		&lcore_config[config->main_lcore].cpuset);
 
-	bscan = rte_bus_scan();
-	if (bscan < 0) {
-		rte_eal_init_alert("Cannot init PCI");
-		rte_errno = ENODEV;
-		return -1;
-	}
-
 	RTE_LCORE_FOREACH_WORKER(i) {
 
 		/*